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September 4, 2021 18:28
July 6, 2021 21:51
September 12, 2020 20:41
September 4, 2021 15:08

Damn Vulnerable Bank


About application

Damn Vulnerable Bank is designed to be an intentionally vulnerable android application. All the details are documented in the guide, here.

Guide overview

Upcoming Sessions


Black Hat Europe


  • Sign up
  • Login
  • My profile interface
  • Change password
  • Settings interface to update backend URL
  • Add fingerprint check before transferring/viewing funds
  • Add pin check before transferring/viewing funds
  • View balance
  • Transfer money
    • Via manual entry
    • Via QR scan
  • Add beneficiary
  • Delete beneficiary
  • View beneficiary
  • View transactions history
  • Download transactions history

List of vulnerabilities in the application

To keep things crisp and interesting, we hidden this section. Do not toggle this button if you want a fun and challenging experience. Try to explore the application, find all the possible vulnerabilities and then cross check your findings with this list.

Spoiler Alert
  • Root and emulator detection
  • Anti-debugging checks (prevents hooking with frida, jdb, etc)
  • SSL pinning - pin the certificate/public key
  • Obfuscate the entire code
  • Encrypt all requests and responses
  • Hardcoded sensitive information
  • Logcat leakage
  • Insecure storage (saved credit card numbers maybe)
  • Exported activities
  • JWT token
  • Webview integration
  • Deep links
  • IDOR

Backend to-do

  • Add profile and change-password routes
  • Create different secrets for admin and other users
  • Add dynamic generation of secrets to verify JWT tokens
  • Introduce bug in jwt verification
  • Find a way to store database and mount it while using docker
  • Dockerize environment

Core Team

Damn Vulnerable Bank was created by

Rewanth Tammana (Rest API) Github LinkedIn
Akshansh Jaiswal (Android App) Github LinkedIn
Hrushikesh Kakade (Android App) Github LinkedIn

Read more, here.